Walker apparatus



FIG. 1 is a front perspective view of the walker apparatus showing my new design.

FIG. 2 is a rear perspective view thereof.

FIG. 3 is a front view thereof.

FIG. 4 is a rear view thereof.

FIG. 5 is a left side view thereof.

FIG. 6 is a right side view thereof.

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines depicted in the drawings depict environmental structure and do not form any part of the claim. 

CLAIM The ornamental design for walker apparatus, as shown and described. 